ci: add test for cargo-pg default feature

Signed-off-by: Ning Sun <[email protected]>

Author: sunng87

.github/workflows/ci.yml

@@ -53,6 +53,9 @@ jobs:
         override: true
     - name: Build and run tests
       run: cargo test --all-features
+    - name: Test arrow-pg default features
+      working-directory: arrow-pg
+      run: cargo test
 
   integration:
     name: Integration tests